diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/clock_gettime.S')
| -rw-r--r-- | arch/s390/kernel/vdso32/clock_gettime.S | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index b2224e0b974c..5be8e472f57d 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S | |||
| @@ -38,25 +38,26 @@ __kernel_clock_gettime: | |||
| 38 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) | 38 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) |
| 39 | brc 3,2f | 39 | brc 3,2f |
| 40 | ahi %r0,-1 | 40 | ahi %r0,-1 |
| 41 | 2: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */ | 41 | 2: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ |
| 42 | lr %r2,%r0 | 42 | lr %r2,%r0 |
| 43 | l %r0,__VDSO_NTP_MULT(%r5) | 43 | l %r0,__VDSO_TK_MULT(%r5) |
| 44 | ltr %r1,%r1 | 44 | ltr %r1,%r1 |
| 45 | mr %r0,%r0 | 45 | mr %r0,%r0 |
| 46 | jnm 3f | 46 | jnm 3f |
| 47 | a %r0,__VDSO_NTP_MULT(%r5) | 47 | a %r0,__VDSO_TK_MULT(%r5) |
| 48 | 3: alr %r0,%r2 | 48 | 3: alr %r0,%r2 |
| 49 | srdl %r0,12 | 49 | al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ |
| 50 | al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ | ||
| 51 | al %r1,__VDSO_XTIME_NSEC+4(%r5) | 50 | al %r1,__VDSO_XTIME_NSEC+4(%r5) |
| 52 | brc 12,4f | 51 | brc 12,4f |
| 53 | ahi %r0,1 | 52 | ahi %r0,1 |
| 54 | 4: l %r2,__VDSO_XTIME_SEC+4(%r5) | 53 | 4: al %r0,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic.nsec */ |
| 55 | al %r0,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic */ | ||
| 56 | al %r1,__VDSO_WTOM_NSEC+4(%r5) | 54 | al %r1,__VDSO_WTOM_NSEC+4(%r5) |
| 57 | brc 12,5f | 55 | brc 12,5f |
| 58 | ahi %r0,1 | 56 | ahi %r0,1 |
| 59 | 5: al %r2,__VDSO_WTOM_SEC+4(%r5) | 57 | 5: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ |
| 58 | srdl %r0,0(%r2) /* >> tk->shift */ | ||
| 59 | l %r2,__VDSO_XTIME_SEC+4(%r5) | ||
| 60 | al %r2,__VDSO_WTOM_SEC+4(%r5) | ||
| 60 | cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ | 61 | cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ |
| 61 | jne 1b | 62 | jne 1b |
| 62 | basr %r5,0 | 63 | basr %r5,0 |
| @@ -86,20 +87,21 @@ __kernel_clock_gettime: | |||
| 86 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) | 87 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) |
| 87 | brc 3,12f | 88 | brc 3,12f |
| 88 | ahi %r0,-1 | 89 | ahi %r0,-1 |
| 89 | 12: ms %r0,__VDSO_NTP_MULT(%r5) /* cyc2ns(clock,cycle_delta) */ | 90 | 12: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ |
| 90 | lr %r2,%r0 | 91 | lr %r2,%r0 |
| 91 | l %r0,__VDSO_NTP_MULT(%r5) | 92 | l %r0,__VDSO_TK_MULT(%r5) |
| 92 | ltr %r1,%r1 | 93 | ltr %r1,%r1 |
| 93 | mr %r0,%r0 | 94 | mr %r0,%r0 |
| 94 | jnm 13f | 95 | jnm 13f |
| 95 | a %r0,__VDSO_NTP_MULT(%r5) | 96 | a %r0,__VDSO_TK_MULT(%r5) |
| 96 | 13: alr %r0,%r2 | 97 | 13: alr %r0,%r2 |
| 97 | srdl %r0,12 | 98 | al %r0,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ |
| 98 | al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ | ||
| 99 | al %r1,__VDSO_XTIME_NSEC+4(%r5) | 99 | al %r1,__VDSO_XTIME_NSEC+4(%r5) |
| 100 | brc 12,14f | 100 | brc 12,14f |
| 101 | ahi %r0,1 | 101 | ahi %r0,1 |
| 102 | 14: l %r2,__VDSO_XTIME_SEC+4(%r5) | 102 | 14: l %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ |
| 103 | srdl %r0,0(%r2) /* >> tk->shift */ | ||
| 104 | l %r2,__VDSO_XTIME_SEC+4(%r5) | ||
| 103 | cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ | 105 | cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ |
| 104 | jne 11b | 106 | jne 11b |
| 105 | basr %r5,0 | 107 | basr %r5,0 |